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Sumpod Wiring Instructions – Part 1

I decided to break the wiring information into two pieces. There are too many minor loose ends I’m working on but have not had time to address. My “day job” gets intense this time of year (final exams, tests, grading, etc.) so the “spare time” is far less so. At the end of this part, there is a pictorial diagram for wiring the LCD. Seems to be a lot of confusion out there, so if you are having trouble on this, check out what I have posted: SumpodBuildPart4a

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9 thoughts on “Sumpod Wiring Instructions – Part 1”

Hey there,
just got my Sumpod and am about to start solder the wires to the LCD-Your instructions make it a lot easier to do, thanks so far!!! But i wonder whats the violet line which shows to connect Nr. 1,3,5 and 16 on your last instruction picture for?

Yves: Guten Tag! The violet wire you refer to connects all of those pins together so that they form one circuit. I’m soon going to post some newer comments and updates to the build instructions, as I was a very early recipient (#14) of a kit. Much has been added by others and is expanding, so do check out the Sumpod forum too. Hope your building goes well! – Eric

Hey Eric!
Ok, i just found out in the meanwhile-anyhow-thank you 🙂 ! Another thing i just can”t find out ist how to assemble the Thermistor (at the hotend) to the board? Is the resistor for getting heat in this little plate? (Sry, newbie 😉

Yves: there are two versions of the hot end – I’ll assume you got the new one since your kit was just sent.

I do have a separate build description of the hot end here: https://renaissance-engineer.net/2011/11/11/sumpod-build-instructions-part-3/ that is for the first generation hot end, but I think your questions are still answered by this instruction. Basically, the thermistor is placed into a small depression of the heater block, and the larger hole should already be filled with the heater resistor and some fire cement. The thermistor needs to be well attached to the heater block with some Kapton tape (a brown colored transparent tape, should be some in your kit). If your parts are radically different from my pictures or it just doesn’t make sense, do let me know and write back with some more details or pictures if possible. – Eric

Thank you very much for the instructions! So far, so good 🙂 Now i thought it would be about time to test the electronics. But before do that, i thought it would be better somebody checks my assembly-don’t want it to smoke off before i even begun….
I uploaded a few pics, if you need a detail, contact me anytime!

Think this will work for just testing one stepper motor at first? Thanks for your kind support!

Yves: yes, from what I can see it appears to be OK. Loose motors can take quite a spin if you speed them up — maybe hang on to it at first (but it could get warm). It is hard to see where the potentiometers are set on your stepper driver boards but it seems like they are all the same — midrange is a good start. And if something starts to smell overheated, turn it all off quickly. – Eric

Hey Eric,
i followed your instructions to assemble the hotend. Looks quite good so far. But there are some parts i can’t refer. Seven real small tubes, an aluminium(?) strip and the heat shrink tube- where do they go to?
And at least the Themistor: is it just hold in place by the kapton tape?
Here is a pic of the current assembly: